Home / 8,722.20-13,081.93-3,174.73

Finding the Fourth Proportional to 8,722.20, 13,081.93 and 3,174.73

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Solution

The fourth proportional to 8,722.20, 13,081.93 and 3,174.73 is: 4,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.20 : 13,081.93 = 3,174.73 : x
  2. Step 2: Convert to fraction form
    8,722.20/13,081.93 = 3,174.73/x
  3. Step 3: Cross multiply
    8,722.20x = 13,081.93 × 3,174.73
  4. Step 4: Simplify right side
    8,722.20x = 41,531,595.63
  5. Step 5: Solve for x
    x = 41,531,595.63/8,722.20
  6. Step 6: Final answer
    x = 4,761.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.